. >> sreenivasan: the president's nominee to be secretary of the treasury jack lew fended off criticism today of his time at citigroup. he was ceo from january of 2008 until early 2009, when he joined the obama administration. during his tenure, he invested in a citi fund that was registered in the cayman islands, well known as an offshore tax haven. republicans pressed lew on the issue at his senate confirmation hearing today. >> my benefit was really very small in the sense that i took a loss when i sold the investment. i always reported all income. i always paid any taxes that were due. i very strongly believe that we should have tax policies that make it difficult, if not impossible, to shelter income from taxation. >> sreenivasan: lew is expected to win confirmation in the full senate. that vote could come late this month. the obama administration is now calling for congress to close gaps in the nation's cyber- security. the president signed an executive order on tuesday, increasing govevement efforts to share information on threats. it also urges voluntary efforts by industry. con